In this list we have gathered a few ideas and suggestions for projects. These are served as brain teasers, a source of inspiration.Disclaimer: Choosing any of these ideas will not increase/decrease your chances of winning in anyway.

Create a website with Bitcoin riddles, where the solution unlocks the addressSource- http://www.bitcoinriddle.comWallet with an offline feature which sends money through Wi-Fi or NFC using someone else's
internet connectivity
Source - Reuven’s idea when he was stuck while travelingHD address verifier - an online check whether an address belongs to a parent key
Source - can this even be done?
Track-n-trace platform for product traceability (food, diamonds, electronic components)
Source - well, its an idea many speak aboutA platform for hackathons projects votingSource - Ron Gross aka Ripper234
Smart property implementation
Source - another idea as old as Bitcoin. http://coinreel.com/mike-hearn-bitcoin-coredeveloper-about-smart-contracts-and-smart-property/Pay as you go services for micropayments
Source - https://github.com/streamium/paystream